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- Table of Contents
- Top
- Main Differences
- Design
- Typing Experience
- Performance
- Software and Operating System
- Comments
ROYAL KLUDGE RK61 vs NuPhy Air75
Side-by-Side Comparison
Products
ROYAL KLUDGE RK61
NuPhy Air75
Tested using Methodology v1.3.1
Updated Nov 19, 2024 06:17 PM
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Amazon.comTested using Methodology v1.3.1
Updated Oct 21, 2024 05:28 PM
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ConnectivityWireless
SizeCompact (60%)
Switch TypeMechanical
N-Key Rollover (NKRO)Yes
Hot-Swappable SwitchesYes
ConnectivityWireless
SizeCompact (75%)
Switch TypeMechanical
N-Key Rollover (NKRO)Yes
Hot-Swappable SwitchesYes
Variants
- RK61 (Black)
- RK61 (White)
- Air75 (Grey)
Our Verdict
ROYAL KLUDGE RK61
NuPhy Air75
The ROYAL KLUDGE RK61 and the NuPhy Air75 are two compact mechanical keyboards, but the NuPhy performs better overall. The NuPhy uses PBT keycaps, which feel more premium. It has much better latency, better ergonomics thanks to its low profile, and has companion software for easy customization. On the other hand, the ROYAL KLUDGE comes in a 60% form factor rather than 75%, so if you don't need arrow keys or any navigational buttons, it's more compact.
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Black
RK61
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Air75
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RK61
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Air75
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Air75
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Air75
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Air75
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Air75
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Air75
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Amazon.comMain Differences forGaming
Gaming
Threshold
Gaming
7.1
7.8
Chord Split
4.8
8.8
Backlight Features
6.5
10
Backlight Clarity
9.0
4.0
Build Quality
7.5
8.5
Multi-Key Latency
7.3
6.5
Single-Key Latency
6.8
7.4
Full Comparison
Design
Dimensions
Top Picture
Size
Compact (60%)
Compact (75%)
Height
1.6" (4.1 cm)
0.9" (2.2 cm)
Width
11.5" (29.1 cm)
12.5" (31.7 cm)
Depth
4.0" (10.1 cm)
5.2" (13.3 cm)
Depth With Wrist Rest
N/A
N/A
Weight
1.28 lbs (0.579 kg)
1.22 lbs (0.554 kg)
Build Quality
7.5
8.5
Build Quality Close Up
Keycap Material
ABS
PBT
Ergonomics
6.0
7.0
Side Picture
Curved/Angled
No
No
Split Keyboard
No
No
Key Alignment
Staggered
Staggered
Minimum Incline
6.5°
2.5°
Medium Incline
N/A
N/A
Maximum Incline
N/A
5°
Home Row Height
32.9 mm (1.3")
19.6 mm (0.8")
Hardware Customizability
8.9
8.3
Customizability Overview
Replaceable Cherry Stabilizers
Yes
Yes
Stabilizer Fixation
Plate-Mounted
Plate-Mounted
Spacebar Stabilizer Size
6.25u
6.25u
Size Of Right Mod Keys
1.25u
1u
Hot-Swappable Switches
Yes
Yes
Switch Stem Shape
Cherry MX Style
Low Profile Cherry MX Style
Switch PCB Socket
5-pin Cherry
Non-Cherry Pinout
North-Facing Cherry MX Interference
Yes
No
Backlight Features
6.5
10
Backlighting Picture
Brightness Max
Backlighting
Yes
Yes
Brightness Min
RGB
No
Yes
Per-Key Backlighting
Yes
Yes
Effects
Yes
Yes
Software Controllable
No
Yes
Backlight Clarity
9.0
4.0
White Shot
Cable & Connector
Connectivity
Wireless
Wireless
Detachable
Yes (Wired Mode and Charge)
Yes (Wired Mode and Charge)
Length
5.8 ft (1.8 m)
4.9 ft (1.5 m)
Connector (Keyboard side)
USB type-C
USB type-C
Wireless Versatility
10
10
Bluetooth
Yes
Yes
Bluetooth Multi-Device Pairing
3
3
Proprietary Receiver
No
Yes
Battery Type
Rechargeable
Rechargeable
Macro Keys And Programming
0.0
4.0
Dedicated Macro Keys Count
0
0
Onboard Macro Programming
No
No
Macro Programming With Software
No
Yes
Extra Features
Extra Features
Media Keys
Non-Dedicated
Non-Dedicated
Trackpad / Trackball
No
No
Scroll Wheel
No
No
Control Knob
No
No
USB Passthrough
No
No
Numpad
No
No
Windows Key Lock
Yes
No
Lock Indicator
No Indicator
Caps Lock
In The Box
Bundle Picture
Typing Experience
Typing Quality
7.0
7.5
Key Spacing
19.0 mm (0.748")
19.0 mm (0.748")
Typing Noise
7.4
7.7
Typing Sample
Average Loudness
53.0 dBA
51.3 dBA
High Pitch Clicks
No
No
Switches
Wobble Video
Switch Name
RK Brown
Gateron Low Profile Brown
Switch Type
Mechanical
Mechanical
Feel
Tactile
Tactile
Analog
No
No
Keystrokes
Key Switch Actuation Graph
Operating Force
55 gf
57 gf
Actuation Force
48 gf
47 gf
Pre-Travel
2.3 mm
1.7 mm
Total Travel
4.1 mm
2.8 mm
Performance
Single-Key Latency
6.8
7.4
Single-Key Latency Graph
Best Connection
16.9 ms
16.9 ms
Best Connection Std Dev
±5.8 ms
±2.7 ms
Wired
16.9 ms
16.9 ms
Receiver
N/A
24.0 ms
Bluetooth
30.8 ms
42.5 ms
PCB (Estimated)
14.8 ms
15.5 ms
Multi-Key Latency
7.3
6.5
Latency Video
Multi-Key Latency Graph
Connection Evaluated
Wired
Receiver
Key Press
17.4 ms
23.7 ms
Key Release
18.2 ms
25.9 ms
Data Transmission
7.5
8.3
Multi-Key Raw USB
Connection Evaluated
Wired
Receiver
USB Polling Rate
1,000 Hz
1,000 Hz
Effective Update Rate
250 Hz
500 Hz
N-Key Rollover (NKRO)
Yes
Yes
Multiple Keys Per USB Report
Yes
Yes
Chord Split
4.8
8.8
Chord Split Graph
4 Chord Split Delay
17.3 ms
2.8 ms
8 Chord Split Delay
39.4 ms
12.9 ms
Software and Operating System
Configuration Software
Software Tour
Software Name
No Software
NuPhy Console
Software Windows Compatible
No
Yes
Software macOS Compatible
No
No
Onboard Memory
No
Yes
Profiles
No Profile
6+
Computer Compatibility
10
10
Windows
Fully Compatible
Fully Compatible
macOS
Fully Compatible
Fully Compatible
Linux (Ubuntu 22)
Fully Compatible
Fully Compatible
Media Key Compatibility
Windows, MacOS & Linux
Windows, MacOS & Linux
Wireless Mobile Compatibility
10
10
Android
Fully Compatible
Fully Compatible
iOS
Fully Compatible
Fully Compatible
iPadOS
Fully Compatible
Fully Compatible
Media Key Compatibility
Android, iPhone & iPad
Android, iPhone & iPad
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Black
RK61
Searching
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Air75
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RK61
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Air75
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Amazon.comGrey
Air75
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Amazon.comGrey
Air75
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Amazon.comGrey
Air75
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Air75
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Air75
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Air75
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Air75
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ROYAL KLUDGE RK61
NuPhy Air75
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ROYAL KLUDGE RK61 vs NuPhy Air75: Main Discussion
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